Screening instruments for post-intensive care unit cognitive impairment
| Screening tool | Number of questions | Interpretation of results | Further information |
|---|---|---|---|
| Montreal Cognitive Assessment (MoCA) | 30 | 26-30 Normal cognitive function < 26 Ninety percent sensitive for mild cognitive impairment and 100% sensitive for dementia of Alzheimer (although scores for Alzheimer disease are typically much lower) < 18 Cutoff typically used for dementia of Alzheimer Note: If patient has < 12 years of education, add 1 point to score | Promising, larger studies needed for validation in critical illness patients Excellent reliability independent of intensive care unit setting |
| MoCA-blind (MoCA without visual elements) | 22 | > 18 No cognitive impairment < 17 Suggestive of cognitive impairment | Scoring is only suggestive and has not been validated |
| Mini-Mental State Examination | 30 | 24-30 No cognitive impairment 18-23 Mild cognitive impairment 0-17 Severe cognitive impairment Note: Ranges may vary based on education level | Poor sensitivity in survivors of acute respiratory illness |
Based on information in references 40–44.